Stellar Weak Interaction Rates and Energy Losses for fp-Shell Nuclei in the Proton-Neutron Quasiparticle Random-Phase Approximation

Details Stellar Weak Interaction Rates and Energy Losses for fp-Shell Nuclei in the Proton-Neutron Quasiparticle Random-Phase Approximation Stellar Weak Interaction Rates and Energy Losses for fp-Shell Nuclei in the Proton-Neutron Quasiparticle Random-Phase Approximation

1999-07-29

arxiv.org/abs/nucl-th/9907112v1

Physics

Nuclear Physics

Nuclear Theory

119 pages, 35 figures, rates are presented on an abbreviated scale to save space

Scientific paper

Nuclear weak interaction rates for fp-shell nuclei in stellar matter and the associated energy losses are calculated using a modified form of proton-neutron quasiparticle RPA model with separable Gamow-Teller forces. The stellar weak rates are calculated over a wide range of densities (10 < \rho Y_{e} (gcm^{-3}) < 10^{11}) and temperatures (10^{7} < T(K) < 30 x 10^{9}). This is the first ever extensive compilation of weak interaction rates in stellar matter calculated over a wide temperature-density grid and over a larger mass range. The calculated capture and decay rates take into consideration the latest experimental energy levels and ft value compilations. We have calculated stellar weak interaction rates for a total of 619 nuclei in the mass range A = 40 to 100. These also include many important neutron-rich nuclei which play an important role in the evolution process of stellar collapse. This is our second paper in a series where we will be presenting our results on an abbreviated scale of temperature and density for the mass range A = 18 to 100. This paper contains the stellar weak rates in the mass range 40 to 60.

Affiliated with

Also associated with

No associations

Rating

Stellar Weak Interaction Rates and Energy Losses for fp-Shell Nuclei in the Proton-Neutron Quasiparticle Random-Phase Approximation does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Stellar Weak Interaction Rates and Energy Losses for fp-Shell Nuclei in the Proton-Neutron Quasiparticle Random-Phase Approximation, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Stellar Weak Interaction Rates and Energy Losses for fp-Shell Nuclei in the Proton-Neutron Quasiparticle Random-Phase Approximation will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-420903